4522390 has 8 divisors (see below), whose sum is σ = 8140320. Its totient is φ = 1808952.

The previous prime is 4522379. The next prime is 4522403. The reversal of 4522390 is 932254.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4522390² = 40904022624200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226110 + ... + 226129.

It is an arithmetic number, because the mean of its divisors is an integer number (1017540).

Almost surely, 2^4522390 is an apocalyptic number.

4522390 is a deficient number, since it is larger than the sum of its proper divisors (3617930).

4522390 is a wasteful number, since it uses less digits than its factorization.

4522390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452246.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 4522390 is about 2126.5911689838. The cubic root of 4522390 is about 165.3697249425.

The spelling of 4522390 in words is "four million, five hundred twenty-two thousand, three hundred ninety".